Struct NativeExprMacro 

pub struct NativeExprMacro { /* private fields */ }

Macro implemented by a native Rust expansion function.

Implementations

impl NativeExprMacro

pub fn new( symbol: Symbol, syntax_shape: Arc<dyn Shape>, implementation: NativeMacroImpl, ) -> Self

Creates a native macro from its symbol, syntax shape, and expansion function.

Trait Implementations

impl Clone for NativeExprMacro

fn clone(&self) -> NativeExprMacro

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl LispMacro for NativeExprMacro

fn symbol(&self) -> Symbol

Returns the symbol the macro is registered under.

fn syntax_shape(&self) -> Arc<dyn Shape>

Returns the shape the macro’s call syntax must match.

fn expand( &self, cx: &mut MacroCx<'_>, input: Expr, captures: Bindings, ) -> Result<Expr>

Expands a matched input form into a replacement expression.